wiatheus



SLED.

' APPLICATION FILED DLE),l 19|?. RENEWED MAY I9. l9l9.

Patented Oct. 7, 1919.

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K. MATHEUS.

SLED.

APPLICATION man DEC.3.1917. RENEwED. 11|AY19.1919.v

1,318,166. Patented 001.11919.

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K. MATHEUS.

sLED.

APPLCATION FILED DEC. 3| |917. RENEWED MAY I9, l9l9.

Patented Oct. 7, 1919.

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li h- M 4 KARL MATHEUS, or CHICAGO, ILLINoIsnssIGNon. fro RICHARD HOCHMUTH, or

CHICAGO, ILLINOIS. l d

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Specification ofLetters Patent. Y

' Patented 001111919.'

Application filedDecember 3, 1917, Serial No. 205,074. Renewed May 19, 1919. Serial No. 298,343.

T 0 all whom t may concern.'

Be it known that I, KAnL-MATHEUS, a citizen of the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in'Sleds, ofwhich the following is a specification. 4

My invention relates to improvements in sleds and has for its object the provision of a sled equipped iwith improved means fo propelling the same.

The invention consists in thecombinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings forming a part -of this specification, and 1n which, I

Figure 1 is a side view shown partially in section of a sled embodying theY invention,

Fig, 2, a top plan view, shown partially in section, `of the same,

Fig. 3, a transverse vertical section taken through the forward portion of the sled, and

Fig. 4f, a rear viewtof the sled with portions broken away for the sake` of clearness.

rlhe preferred form of construction as illustrated in the drawings comprises a sled body 5 mounted upon supporting runnersG and equipped with a suitable seat7 as shown. The sled body 5 is also equipped lwith steering runners 8 mounted on the lower ends of oscillatory steering rods 9, one of said steering rods being extended upwardly as shown and provided with a steering handle 10. Both of the rods 9 carry forwardly extending ro-cker arms I11 connected by a link 12 so as to compel movement ofthe steering runners 8 in unisonl with each other.

A propulsion frame 13 is arranged .under the seat 7, said frame being equipped with a central transverse supporting bailv 14 slid?" ably mounted on the lower end of a link 15 depending from a rocker arm 16 fixed centrally to a rocker shaft 17 arranged transversely under the seat 7. Shaft 17 is provided at one side with an operating handle 18 equipped with a detent 19 coperating with a toothed segment 20 and by means of which the propulsion frame 13 may be readily adjusted vertically.V A compression spring 21 is imprisoned on link 15 between a cup-shaped socket 22 secured to the upper portion of said link and the upper side of the. top of bail 14C, an adjusting nut mounted respectively at the forward `and rear ends of frame 13 and each is equipped Vwith twojpairs of sprocket wheels 25 as shown. VSprocket chains 26 are arranged son sprockets 25 and toothed traction contact Vmembers 27 are secured between adjacent pairs of` sprocket chains 2,6 in position to contact with the ground and serve as a means of propulsion, the-handle 18 serving to adjust the contacts '27 into and out of contactV with the ground and the spring21 yielding sufficiently to adjust said contacts to -inequalities in the ground.

.The forward shaft 23 carries a central sprocket wheel 28 connected by a sprocket chain 29 with another sprocketwheel 30 on a driving shaft 31 mounted transversely in the forward portion of the sled body. 'A link 32 is pivotally connected with shaft 31 and alsofwith a rocker arm-33on shaft 23 to maintain the-shafts 23 and31 in proper relation' during ,adjustments of shaft 23. Ratchet wheels 34 are fiXed to shaft 31 and coperate with operating levers 35 loosely mounted on shaft 31 and carrying pawls 36 arranged to engage said ratchet wheels. Each of the levers 35 is equipped lwith an operating `pedal 37 'and is connected at its Y lower end by means of a link 38`with the corresponding end of a rocker arm 39 pivoted at 10 to the underside ofv the sled body. By this arrangement, by operating the pedal 37 with the feet the shaft 31 is continuously driven in the direction to operate the propulsion chains 26 to drive the sled forwardly vwhen the contacts 27 are lowered finto "contact with the ground, the rocker arm and link connection between the lower ends of the levers 35 accomplishing the return in- -operative movements in said levers. By'this arrangement an extended and adequate traction engagement is offered with the ground,V

for the propulsion of the sled and the traction contacts automatically adjust themselves f to such `contact notwithstanding inequalities in the ground. The specific arrangement set forth is a simple and efficient one for the purpose l -V V Y While 1 have illustrated and described the preferred form of construction for-carrying the appended claims.

l-Iraying described my invention what l claim as new and desire to secure by Letters y.Patent is: v

yl. The combination with a sled; of a ,rocken shaft traversing the saine; an operating handle for operating said shaft; a Vrocker arm larranged on said shaft centrally v with relation .to the lbody of said sled; .a `depending link on .said lrocker arm; a frame pivoted on .the lower end `of said link; an endless conveyer element mounted on said frame; ,and contacts .on said element varranged to engage thefground, substantially as described.

2. The .combination with a sled; of ,a rocker ,shaft traversing the same; an operating handle orvoperating said shaft; a rocker .arnr arranged on said sha-ft centrally with relation to the body of saidsled; a depending link on said rocker arm; a compression .spring on said link yieldingly pressing said frame downwardly; ya frame pivoted on the lower end of said link; an endless conveyer element mounted on said frame; and contactson said element'arranged to enga-ge the ground, substantially as described.

3. The combination with `a sled, of a rocker shaft traversing the same; an operating handle on said shaft; a rocker arm positioned on said shaft centrally wit-h respect to'said sled; a depending link on said rocker arm; a frame slidable on said link; a compression spring on .said link yieldingly holding said frame in depressed position; transverse sprocket shafts' at the forward and Irear ends of said frame; two pairs of sprocket wheels on each of said shafts;

sprocket chains passing over said sprocket wheels; toothed vcontact-l members mounted on Lad]acent pairs of sprocket chains and ar- V`rranged to engage the ground; and means for wand rear .ends of said frame; two pairs of sprocket wheels on each vof said shafts; .Sprocket chains passing over said sprocket wheels; toothed contact members mounted on adjacent pairs of sprocket chains and arranged to enga-ge the ground; a. transverse driving shaft .on the forward portion of said sled; rocker levers pivoted on said shaft; ratchet wheels secured to said shaft in operative relation with said levers; pawls `on said levers Acooperating with said ratchet wheels; pedals on .said levers; a sprocket wheel and chain connection .between said driving shaft and the forward of said sprocket shafts; a link connection between said driving shaft and the forward of said sprocket shafts; and a rocker arm and link ,Connection between said levers, substantially as described.V

5. The combination with a-sled, of a driving shaft arranged transversely thereof; roc-ker levers on said shaft; ratchet wheels fixed to said shaft and cooperating with said levers; pawls on `said levers; pedals on said levers; a rocker arm and link connection between said levers; propelling means on said sled arranged to contact with the ground; and an operative connection between said .driving shaft and said propelling means, substantially as described.

In testimony whereof I-have signed my name to this specification inthe presence of two subscribingl witnesses.

KARL MATHEUS.

Witnesses:

JOSHUA R. H. Porre, MILDRED E. ANDERSON.

.(lovpiexsfoil this `patent may Lbe obtained for five 'cents'.each, ahy .addressing Vthe Commissioner of Patents,

Y Washington, v1). :G f 

